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Fig. 4. Molecular map of the short arm of wheat chromosome 3B showing the genetic location of the Septoria tritici blotch resistance gene Stb2. Markers were mapped in the 106 DH lines developed from a cross between the resistant cultivar Veranopolis (which carries the Stb2 gene for resistance to M. graminicola) and the susceptible parent RAC875-2. Approximate distances in centimorgans (cM) are indicated on the left; molecular markers and the resistance locus are on the right. The letter X in front of each SSR locus name indicates the basic symbol for a molecular marker with unknown function in wheat. Map distances are proportional to the distances in cM.
